Boston's historic ballpark saw its first American League game in 1912, making it the oldest (and smallest) stadium still active in the Major Leagues. The most coveted tickets these days are in the Green Monster section, which was built in 2003. However, all tickets are hard to come by after the Red Sox won the 2004 World Series. Behind-the-scenes guided tours are offered during baseball season on game days. Hourly tours leave from the Souvenir Store across Yawkey Way daily 9 am-4 pm or until three hours before game time, whichever is earlier. US$12 adults, US$11 seniors, US$10 children younger than 15. Tour reservations are recommended. 4 Yawkey Way (Kenmore or Fenway T stops on the Green Line), Boston. Phone 617-236-6666. http://www.redsox.com.